I think your Doc is a tool. It's true, life will be different but once you get yourself in control and now how to control your blood sugars it will be a piece of cake (pun not intended).
You think you have it bad? Shesh. I was 10 years old, diagnosed with T1 and stuck in the hospital for my 11th birthday and then I was released on October 31st, Halloween, with the doctor telling me that I could not eat candy or drink pop anymore!! How can you tell a kid that?!??! This was in 1987 and I took two shots a day and ate three meals and three snacks.
Now that I have been on the pump I eat anything I want as long it is has the Carb count on the back so I know how much insulin to take. A lot of home cooked desserts are a guessing game because you don't know how much sugar, frosting and candy are mixed in and spread on cake and brownies.
So, I don't eat them anymore. It's no big deal once you go 20 years without it!! You'll get used to it and heck, it might even keep us thin by skipping the dessert!!!
